hey guys
ive seen those crappy air filters on ebay with a pc fan inside bragging to have supercharging ram effect but what do you think of this?

http://www.electricsupercharger.com/products-super-eram.html

came across it the other day. . .
cheers

mario

"A fool and his money are soon parted"

Trust me, keep away from gadgets and if you want a faster 20v buy the turbo version

unless it can spin at +- 200K rpm (a turbo spinning speed) you're better off spending that money on beer

Lol - you will definately get about another 50bhp from that....

Seriously dont bother!

If it really does draw 124A through those crappy little cables, I would plumb in a fire extinguisher as well!

These kill me, these gadgets. I wonder if they throw in one of them resistors as well?

Well I've had a good read at the blurb the company produces and it's interesting (and scary). They guarantee that if you don't think it works they will refund your money but first you have to take the car to a dyno, do a before/after run and photograph the installation to ensure that you've fitted the kit correctly.
They also point out that they only accept returns if the item is returned in "as new" condition and no modifications are made to any part of the system....oh, and there's a minimum $25 restocking fee and they won't refund shipping fees.

Reading the smaller print they actually reckon it's good for 5% power increase, which in the case of the 20v NA equates to 7BHP, or roughly the same output as a 20v VIS engine but there's a catch: the machine only operates when at wide open throttle!

Reading the testimonials was a bit scary too: people noticing that their headlights dim when the machine kicks in, great in a coupé where the standard headlight is already poor or, as Elton John once said when asked about the coupé headlight, "it's like a candle in the wind!"

Or the guy who has had the car on a dyno and discovered, unsurprisingly, that it's making the engine go way too lean at the top end.....

By the time you include shipping and possible import taxes you could be looking at the thick end of nearly £400!

Best advice, save your money and buy a 20vt

And the worst thing about these "Coupe superchargers"?

There's a trader on this forum that sells them (thankfully not on this forum, otherwise he would have been laughed out of the place.

However, he's currently selling them on ebay, which speaks volumes for his Coupe credentials.

What REALLY gets my goat is that people new to the Coupe community may believe this tripe and spend hundreds of pounds on what amounts to a completely pointless piece of marketing tat.

well im guessing i wont b one of those people. . .

cheers guys....
feel a bit silly for asking now tho :o)

don't feel silly - at least you asked the question and found out BEFORE you parted with your money

If you want to make a 20v faster, forget all about trying to uprate the engine, its simply not a viable proposition.

instead, concentrate on the handling - a few choice mods will see you able to take corners 10% faster, which will give you 10% more speed down the next straight, all for the same bhp

There's nothing wrong with asking!

cheers guys!

I've tried complaining to ebay before about the utterly impossibly misleading claims for these products... hopefully they will get banned before long

i,m quite new to the coop but not new to driving & cars.....i,ve been fiddling with cars since the late sixties, but i,ve never come across such utter crap/nonsense/ money/making p[sh in all my life
surely people cant be taken in by this

i dont understand how they can get away with the claims that they make? it is very missleading. And if your not too technical like myself then you take what they say is true. . . thanks once again for clarifying it guys.

Common sense levels must be rock bottom in the people who buy these beleving the hype.
Do you think a plastic fan can do what a blower or turbo does? Surely the multi billion pound car industry would have thought about it before

this electric supercharger may work,

no ebay resistors in sight

im sure you'd need proper mapping to go with it though, and somhow i think instalation may be a tad more complex than the ebay ones

now thats interesting . . . .
any views on this?
http://www.boosthead.com/product.php

They look alot better, but I still wouldnt go near them with my own money. I dont see the problem with a belt driven charger. I know it saps power, but it also creates more than it takes. A typical drag engine (belt driven i might add) supercharger uses about 4-500bhp at full chat (5 bar max), but makes upwards of 8000bhp.
Obviously thats an extreme case.
Another different approach is this, which a mate of mine is doing to a car of his.... (this isnt his, just an example)
http://images.chevyhiperformance.com/techarticles/148_0502_turbo_13_z.jpg

what exactly is that, that your mate is doing to his car?
ive been tooling with the idea of a belt driven supercharger but not too sure where to start. More importantly what supercharger would be suitable. . .

In theory you can drive forced induction with electric motors - but you'd need either very short bursts if using a battery or the same kind of power sapping parasitic load as a supercharger.
Turbos give you efficiency, the only cost is lag... you want more oxygen in there for short bursts and get yourself nitrous

Mario - there is a thread about that kind of turboing somewhere on here. There's a link to a US company putting turbos in the exhaust but right down by the rear axle. I can't find the link though...

IMO GreyFurby's suggestion is better. Nitrous is an easy option for upping the power on N/A. Not sure insurance companies take too kindly to it though. That said I'm not sure how different it would be to a turbo conversion on an N/A.

Thinking out loud - I don't know how much bhp or lb/ft the N/A bottom end can take. However I think there is a 20v N/A running TB's cams etc with 200bhp(ish), which would suggest that it can take that power. So a progressivly controlled 50bhp shot of Nitrous could be ok for N/A?

Found it: clickety click!

stan! your the man!

He is fitting the turbo remotely.
We've yet to see the results of it, but it should be interesting. Car should be piped up with temp and pressure sensors everywhere in the system so we can log what effect it is having. Obvious ones include lag, partly due to the increased volume of cold side pipework (though not nearly as much as you'd think), but also due to the EGT's.

Its basic turbo theory that the turbo needs to be as close as possible to the cylinder head.

Exhaust gasses cool down very rapidly and the turbo relies on gas speed to keep it spinning

The further away from the engine it gets, the less energy is capable of being extracted from the turbine

I'm struggling to understand why anyone would even entertain the idea - the lag will be unbelievably bad, as the turbo will have such a vast volume of air to compress

Gas speed is about 20% of it, heat is a MAJOR player in spool up.

Put simply, if i moved a standard turbo away from a standard engine, it wouldnt work as well as a standard engine (dont mean to sound patronising there, just an example)

Also, the lag due to the increased capacity of cold pipes isnt as bad as you would think. Still worse than standard though of course. Its an excercise of the 'beacuse we can' rule. Also, there are very little test results available. We will measure EGT @ normal turbo distance from manifold, and immediately before the turbo, to determine the temp drop, and the same on the cold side to see if we see a reduction in any heat. The idea of carbon pipe has been mentioned. I've seen a carbon inlet and it helps with temps...

You do make a valid point Nigel, I think he is mad for doing it, but I am also incredibly interested in the results as I have never done anything like it.